Explanation Formula used: The sum of cosine formula: cos ( α + β ) = cos α cos β − sin α sin β . Calculation: The given currents are I cos ( θ + 30 ° ) , I cos ( θ + 150 ° ) , I cos ( θ + 270 ° ) . In order to show the sum is zero add the given three currents and use the formula stated above. I cos ( θ + 30 ° ) + I cos ( θ + 150 ° ) + I cos ( θ + 270 ° ) = I ( cos ( θ + 30 ° ) + cos ( θ + 150 ° ) + cos (</

Student Solutions Manual For Basic Technical Mathematics And Basic Technical Mathematics With Calculus

11th Edition

ISBN: 9780134434636

Author: Allyn J. Washington, Richard Evans

Publisher: PEARSON

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Chapter 20.2, Problem 47E

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To verify: The sum of the currents is zero, when the design of a certain three-phase alternating-current generator has I cos(θ+30°),I cos(θ+150°), I cos(θ+270°) as current.

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Chapter 20.2, Problem 46E

Chapter 20.2, Problem 48E

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Student Solutions Manual For Basic Technical Mathematics And Basic Technical Mathematics With Calculus

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To verify: The sum of the currents is zero, when the design of a certain three-phase alternating-current generator has I cos ( θ + 30 ° ) , I cos ( θ + 150 ° ) , I cos ( θ + 270 ° ) as current.

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To verify: The sum of the currents is zero, when the design of a certain three-phase alternating-current generator has I cos(θ+30°),I cos(θ+150°), I cos(θ+270°) as current.

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